Door-operating mechanism



M. c. BLEST. DOOR OPERATING MECHANISM. APPLICATION FILED MAY'IQ, I92I,

Patented Sept. 13, 1921.

2 SHEETS--SHEET l.

M. C. BLEST.

DOOR OPERATING MECHANISM.

APPLICATION FILED MAV 10, I92].

1, 8 9 O, 8 8 8. Patented Sept. 13, 1921.

2 SHEEIS-SHEH' 2.

%2: zifi A onirs To-all it mayconoemf' Pennsylvania, have invented certain new andnseful Improvements in Door-Operating Mechanism, of which the following is" 1 a specification.

This invention relates to railway dump cars and particularly to the type of dump carin which the discharge door operating shafts are disposed longitudinally of the car and located between thecenter and side sills of the car '(the center sillsnot being illustrated) upon the lower edge portion of the side sills and has for an object the provision of means for operating a discharge door operating shaft which terminates short ofthe ends ofan adjacent side sill and is located between the center and side sill in a plane upon the lower edge of the side sill,

thus obviating the necessity of extending the shaft beyond the ends of the side sill to accommodate the operating and locking mechanism.

Another ob ect of the invention is to provide an operating lever or socket which extends below the side sill of a car where it is'easily accessibleto an 0perator, which lever or socket, when \being openated to open or close the discharge doors, is movable to such a position that portions thereof extend beyond the outside lines of the side sill.-

' y A further object of the invention is to provide an operating lever or socket with a reversible pawl mechanism, which pawl when in one of its preferred positions is held against accidental movement. I

'These and other obj 'cts will be apparent from the following description. Q

Referring now to the drawings in which like reference characters refer to like parts, Figure 1,. is ;a side .e1evational-view of a ortion off a car embodying the invention; igs. 2 and 3 are enlarged sectional views an enlarged sectional view taken on line 4-4 of Fig! 2. Figs. 5,and 6 are enlarged sectional views which correspond to Figs. 3'

' and 4 respectively showing a modification .of the invention and Fig. 7 is 'a sectional View 'nrresponding to Fig. 2 showing such modification. Fig. 8 is a sectional view' more cl mm, or BELLEVUE, rEnnsYL VANIA, users-non 'ro :easssnn srnnn can COMPANY, or rrrrsnuaen, PENNSYLVANIA, a conronarron or new messy;

noonsornaa'rme seem-mm, i i

Application filed May 10, 1921. Serial n01 teases.

connected with the'side sills. Theater" of (are stationary and are secured to the uiide frame and between such portions tlie'doo member may be provided which atone e may be'secured to the chain winding d specification of Letters Patent. Patented Sept.

corresponding to Fig. 2, showings modification of the inventlon.

:Beferring now in detail tothe'drawings" W the reference character '1 indicates the un "t derframe of thecar, (a-portionlonlyi of -SO which is illustrated) which underframe comprises side 'sills2 and transverse me bers 3 which members at their ends! are v plurality-of drop doors 4, each of which atone side is hinged to the underframe in any desired marine 4' The end portions 5 of the floorof thee the car is provided with a 4 are arranged. The side walls of-thecmay be of any suitable 'construction,"but the present embodiment of the invention have been shown as comprising longitudin j sheathing boards 7, coping angle '8, vertical metallic stakes 9 anddiagonalmetallic. braces 10, such stakes and braces beingfsecured at one end to the coping angle and" 1the opposite end being secured to thesidfef" s1 a v Beneath the drop doors and inwardly from the side sills, door operating shafts 11". are provided which extend longitudinally of" A p the car and terminate short of the ends ofjjl the side sills. Each of these shafts is loosely mounted, ab eye the lower edge portion Y the side sill,' .'1s slotted bearing members I which are secured to the transverse niem hers 3 of the underframe. Between these transverse members the shaft 'is provided with rollers 13 having a chain Windin" portion 14:, such rollers being adapted'f't engage shoe members 15 mounted on th doors 4. To operate the doors a deal 14 and at the opposite end to the shoelme ber 15. In thisembodinfient ofthe inven tion the shaft is rotatable and bodily mov able. Whenthel shaft is rotated. in the ,di rection as indicated by the arrow in Fig. the rollers 13 which are serrated 'will enga serrated portionsof the shoe menibersflii and will cause the shaft to move bodily in a direction toward the side .sill, and whenl'ijjlot rotated in the direction opposite to that 'in -Q dicatedb the arrow in Fig. 3 wi1l.causefit' to move bodily in a direction; away fronil the side sill.

The operating shaft-extends through and beyond the transverse member 3 and bearing. member 12 which are adjacent the end drop door, the portion of the shaft projecting beyond the bearing member 12 being preferably square. The round portion of the shaft is rotatably mounted in a bearing member 17 which is slidably mounted in the bearing member 12, such bearing member 17 having a vertically disposed portion 18 which extends inwardly beyond the shaft. This portion is provided with an outwardly extending lug 18 upon which a pawl 19 is rotatablv mounted and adapted to be movedinto and out of engagement with a ratchet wheel 20 mounted on the square portion of the shaft,

- and is further provided with a lug 21 upon which a dog 22 is rotatably mounted andadapted to be moved into and out of engagement with the pawl 19.

ratchet mechanism is provided which comprises a ratchet wheel 23 and a lever socket member 24. The ratchet wheel 23 is mounted on the square end portion of the shaft and is held in its proper position by members 25 which are secured to the shaft. These members are provided with bushing portions 26 upon which spaced portions 27 of the lever socket member are rotatably mounted and are further provided with collars 28 adapted to prevent movement of the lever in a direc tion longitudinally of the shaft. Below the shaft this lever is provided with a socket portion 29 adapted to receive a suitable operating lever. When the discharge doors are in their normal closed position the socket portion is disposed in a horizontal plane as shown infull lines in Figs. 1,2 and 4 where it is easily accessible tothe operator for inserting an operating lever and for operating the discharge door 'operat1ng-mecha nism. When the doors are in their normal open positions the socket portion of the lever extends outwardly beyond the side sill and the opening for the reception of the lever is disposed upwardly. The ratchet wheel 23 is arranged between the spaced port1ons'27 of the lever socket and is'adapted to be en- 'gaged by a pawl 30 which is arranged between and pivotally connected with the spaced portions 27. This pawl is provided with ratchet wheel engaging portions 31, one

of which is adapted to engage the ratchet wheel to rotate the shaft in one direction the upper end portion of which is adapted to engage-themember 35 and hold suchmemher in close contact with the projection 32 For the purpose 'of rotating the shafta:

and the other adapted to engage the ratchet wheel to rotate the shaft in the opposite f 5.. In a dum of the pawl at all times. When the discharge doors are being openedthe member 35 engages the surface 33 of the projection 32 and. when the doors are being closed such member engages "the surface 34, the position ,70 of the-pawl being changed by the operator.

It will here be noted that the member 35 and spring 37 will prevent the pawl from becoming accidentally disengaged from the ratchet wheel and at the same'time will permit such pawl to be easily moved by the operator to its different operative positions.

It will further be noted that as the operating shaft moves bodily the'bearing member 17, pawl 19, ratchet wheel 20, dog 22 and ratchet mechanism will .move with the shaft.

In Figs. 5, 6 and 7 a modification of the invention has been illustrated in which the shaft rotates hutgdoes not move bodily.

In Fig. 8, a modification of theiever sockethas been illustrated which may be applied to a bodily movable and rotatable shaft or to a rotatable shaft. The socket portionof this lever when the doors are in their open positions being wholly outside the linesof the side sill and being disposed substantially vertical.

Having thus described the invention what I claim as new and desire to secure by Letters Patent is v 1. In a dump car, a sill, a discharge door operating shaft behind said sill and an operating-lever mounted on said shaft having a socket portion depending below said sill, said socket portion being movable heyond the outside vertical lines of said sill. 2. In a dump car, a sill, a bodily movable discharge door operating shaft behind said I sill. and an operating lever mounted on said shaft and being movable therewith, the end portion of said lever being movabie to a position beyond the outside vertical lines'of said sill. j

3. In a dump car, a sill, a bodily movable and rotatable shaft behind said sill, and an operating lever mounted on said shaft and being movable therewith, said lever having a socket portion depending below said sill and movable to a position beyond the out side vertical lines of said sill.

4. In a dump car; a sill, a discharge door operating shaft behind said sill, a ratchet wheel mounted on said shaft, an operatin l lever rotatably mounted adjacent said ratchet wheel and depending below said sill'.' -120 ii -i-eversible pawl pivotally mounted on'said lever adapted to engage said ratchet wheel,

a projection on said pawl and means engaging said projection for holding said pawl in engagement with said ratchet wheel in one of its positions. car, a sill, a discharge doom operating s'ha t behind said siil, a ratchet wheel mounted on said' shaft, an operating lever rotatably connected with said shaft and 'i :1 raversible pawl In iestimony whereof I afi'ix my signature engage said ratchet 1n the presence of two w'ltnessem Wheel, a proj i on said. pawl Examine" a N L ll BLE T. plurality wk si-apmg fines, a. membar loosely l T C S mau'n 'ed an 3M6 lave? adapted in, engage I Witnesses: said fumes and meims imboldmg saldmem- EDTIHE LAMBE,

bar in engagement wiih aws-5011. ROBERT HARDING; 

